1213152652 has 12 divisors (see below), whose sum is σ = 2154704440. Its totient is φ = 597522816.

The previous prime is 1213152637. The next prime is 1213152653. The reversal of 1213152652 is 2562513121.

It is a super-3 number, since 3×1213152652³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213152652.

It is not an unprimeable number, because it can be changed into a prime (1213152653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263077 + ... + 2263612.

Almost surely, 2^1213152652 is an apocalyptic number.

It is an amenable number.

1213152652 is a deficient number, since it is larger than the sum of its proper divisors (941551788).

1213152652 is a wasteful number, since it uses less digits than its factorization.

1213152652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526760 (or 4526758 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 1213152652 is about 34830.3409687588. The cubic root of 1213152652 is about 1066.5269088160.

Adding to 1213152652 its reverse (2562513121), we get a palindrome (3775665773).

The spelling of 1213152652 in words is "one billion, two hundred thirteen million, one hundred fifty-two thousand, six hundred fifty-two".